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Kruka [31]
2 years ago
8

Find a polynomial with a degree of 3, and the zeros 1,7, & -4 with no other zeros.

Mathematics
1 answer:
zubka84 [21]2 years ago
5 0

The\ zeros:\\\\x=1,\ x=7,\ x=-4\\\downarrow\\x-1=0,\ x-7=0,\ x+4=0\\\downarrow\\w(x)=(x-1)(x-7)(x+4)=(x^2-7x-1x+7)(x+4)\\\\=(x^2-8x+7)(x+4)=x^3+4x^2-8x^2-32x+7x+28\\\\Answer:\ w(x)=x^3-4x^2-25x+28

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Pls answer I will mark brainliest
Tamiku [17]

Answer:

1372 cubic ft.

Step-by-step explanation:

V=\frac{4}{3} \pi 7^3

V=\frac{4}{3} \pi 343

V=457\frac{1}{3} \pi

Since pi is 3 to find the approximate answer, do:
V=457\frac{1}{3} (3)

V=1372

Hence, the volume of the sphere is approximately 1372 cubic ft.

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1 year ago
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maksim [4K]
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3 years ago
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rewona [7]

Let h equal the number of hours the electrician works.

We can write the equation like this:

90h + 60 = 600

Solve for h.

90h + 60 = 600

~Subtract 60 to both sides

90h + 60 - 60 = 600 - 60

~Simplify

90h = 540

~Divide 90 to both sides

90h/90 = 540/90

~Simplify

h = 6

Therefore, the electrician work for 6 hours.

The correct answer is Option 1.

Best of Luck!

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3 years ago
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pls help me guys may brainlest,5 star,1 heart,at follow kayo saakin pag nasagot miyo ito 3 questions lang naman po ito eh1.mitch
Natalija [7]

Answer:

a. 1/2 + 9/10 = 5/10+9/10 = 14/10 = 7/5 = 1 2/5 meters or ribbon

b. 5/8 = 15/24, 7/12 = 14/24 Jeff jogged longer and by 1/24 kilometers

c. 3/9 = 6/18. 15/18-6/18 = 9/18 = 1/2 left.

Hope this helps :)

Step-by-step explanation:

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2 years ago
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Answer:

so midpoint formula is (x1+x2/2, y1+y2/2)

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so, for the third example, start with the x. how fair is -8 from -1? The answer is 7. So, we must ask, what number is 7 more than -1? Answer is 6. Then repeat for the y. 6 is 5 units away from 1, so then we do 1-5=-4. So it should be (6,-4) as point B

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3 years ago
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